hap

nouns

an accidental happening
"he recorded all the little haps and mishaps of his life"
hap
is a type of (narrower)
anything that happens suddenly or by chance without an apparent cause
"winning the lottery was a happy accident"; "the pregnancy was a stroke of bad luck"; "it was due to an accident or fortuity"

verbs

come to pass
"What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important"